In this video about Troy Van Leeuwen's team from QOTSA, you can see back in the minute 3:56 onwards, Dean's pedalboard of guitar and synthesizer.
And it is possible to see the Boss Footswitch in the Synthesizer's Pedalboard

At 10:30 in this Rig Rundown for Lindsey Buckingham of [Fleetwood Mac](http://equipboard.com/band/fleetwood-mac) and [Buckingham Nicks](http://equipboard.com/band/buckingham-nicks), his gear is displayed, showing a Boss FS-5U Nonlatching Footswitch.

"I noticed you have an FS-5U Foot Switch with your DD-7 for tapping in the delay time. Do you tap in the rate at different tempos?
Yeah, all night long. I have some analog delays, too—which I use because they have a cool sound to them—and I put them before the DD-7. Then, I use the DD-7 to tap the analog delays. Because the DD-7 goes last, it sets the tempo of the other delays. Even if they’re out of tempo, the DD-7 will loop them at the appropriate tempo."

4
reviews

This is the no-compromise go-to pedal for a non-latching footswitch. Built like a tank, it will most likely outlive you and your band members, even if you all go to war.
With a side switch to toggle between "normally open" and "normally closed" states, this pedal covers every use you can imagine.